Controlling metal-support interactions is important for tuning the catalytic properties of supported metal catalysts. Here, premade Pd particles are supported on stable polymers containing different ligating functionalities to control the metal-polymer interactions and their catalytic properties in industrially relevant acetylene partial hydrogenation. The polymers containing strongly ligating groups (e.g., Ar-SH and Ar-S-Ar) can form a polymer overlayer on the Pd surface, which enables selective acetylene adsorption and partial hydrogenation to ethylene without deactivation. In contrast, polymers with weakly ligating groups (e.g., Ar-O-Ar) do not form an overlayer, resulting in non-selective hydrogenation and fast deactivation, similar to Pd catalysts on conventional inorganic supports. The results imply that tuning the metal-polymer interactions via rational polymer design can provide an efficient way of synthesizing selective and stable catalysts for hydrogenation.Hypercontractile esophagus (HE), defined by the Chicago Classification version 3.0 (CCv3.0) as 20% or more hypercontractile peristalsis (Distal Contractile Integral &gt;8000 mmHg?s?cm) on high-resolution manometry (HRM), is a heterogeneous disorder with variable clinical presentations and natural course, leading to management challenges. An update on the diagnostic criteria for clinically relevant HE was needed. https://www.selleckchem.com/products/Rapamycin.html Literature on HE was extensively reviewed by the HE subgroup of the Chicago Classification version 4.0 (CCv4.0) Working Group and statements relating to the diagnosis of HE were ranked according to the RAND UCLA Appropriateness methodology by the Working Group, and the quality of evidence was rated using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) framework. An overall emphasis of the CCv4.0 is on clinically relevant esophageal dysmotility, and thus it is recommended that an HE diagnosis requires both conclusive manometric diagnosis and clinically relevant symptoms of dysphagia and non-cardiac chest pain. The Working Group also recognized the subtypes of HE, including single-peaked, multi-peaked contractions (Jackhammer esophagus), and hypercontractile lower esophageal sphincter. However, there are no compelling data currently for formally subdividing HE to these subgroups in clinical practice.Nonalcoholic steatohepatitis (NASH) is a pathological manifestation with a progressive incidence in response to the epidemic of hepatic steatosis caused primarily by excessive energy intake. The present study unravels affected biological processes and functions by the presence of NASH in rats using a label-free quantitative proteomic strategy. NASH was induced by a Western high-sugar and high-fat diet for 20 weeks. The liver tissue was collected for histology and for a mass spectrometry-based proteomic protocol. The NASH group showed severe lipidosis, hepatocyte ballooning, and the presence of collagen deposition. Among upregulated proteins in NASH perilipin-2 (Plin-2; F6QBA3; difference [diff] 2.29), ferritin heavy (Fth1; Q66HI5; diff 2.19) and light (Ftl1; P02793; diff 1.75) chains, macrophage migration inhibitory factor 1 (Mif; P30904; diff 1.69), and fibronectin (Fn1; F1LST1; diff 0.35) were observed, whereas among downregulated proteins, plectin (Q6S399; diff -3.34), some Cyp2 family proteins of the cytochrome P450 complex, glutathione S-transferases, flavin-containing monooxygenase 1 (Fmo1; P36365; diff -2.08), acetyl-CoA acetyltransferase 2 (Acat2; Q5XI22; diff -2.25), acyl-CoA oxidase 2 (Acox2; F1LNW3; diff -1.59), and acyl-CoA oxidase 3 (Acox3; F1M9A7; diff -2.41) were observed. Also, biological processes and functions such as LPS/IL-1 inhibition of RXR, fatty acid metabolism, Nrf2-mediated oxidative stress response, xenobiotic metabolism, and PXR/RXR and CAR/RXR activations were predicted to be affected. In conclusion, the liver of rats with NASH induced by Western diet shows a decreased capacity of metabolizing lipids, fatty acids, and xenobiotic compounds that predispose fibrosis development.Prevalent vertebral fractures (PVFx) and abdominal aortic calcification (AAC) are both associated with incident fractures and can be ascertained on the same lateral spine images, but their joint association with incident fractures is unclear. Our objective was to estimate the individual and joint associations of PVFx and AAC with incident major osteoporotic, hip, and clinical vertebral fractures in 5365 older men enrolled in the Osteoporotic Fractures in Men (MrOS) Study, using Cox proportional hazards and Fine and Gray subdistribution hazards models to account for competing mortality. PVFx (Genant SQ grade 2 or 3) and 24-point AAC score were ascertained on baseline lateral spine radiographs. Self-reports of incident fractures were solicited every 4?months and confirmed by review of clinical radiographic reports. Compared with men without PVFx and AAC-24 score 0 or 1, the subdistribution hazard ratio (SHR) for incident major osteoporotic fracture was 1.38 (95% confidence interval [CI] 1.13-1.69) among men with AAC-24 score??2 alone, 1.71 (95% CI 1.37-2.14) for men with PVFx alone, and 2.35 (95% CI 1.75-3.16) for men with both risk factors, after accounting for conventional risk factors and competing mortality. Wald statistics showed improved prediction model performance by including both risk factors compared with including only AAC (chi-square = 17.3, p? less then ?.001) or including only PVFx (chi-square = 8.5, p = .036). Older men with both PVFx and a high level of AAC are at higher risk of incident major osteoporotic fracture than men with either risk factor alone. Assessing prevalent radiographic vertebral fracture and AAC on the same lateral spine images may improve prediction of older men who will have an incident major osteoporotic fracture, even after accounting for traditional fracture risk factors and competing mortality. © 2021 American Society for Bone and Mineral Research (ASBMR).Despite the importance of social networks for health and well-being, relatively little is known about the ways in which adults with intellectual disabilities in the U.K. experience their social networks.
A systematic review was completed to identify research focused on the social networks of adults with intellectual disabilities. Studies published from 1990 to 2019 were identified. Studies were thematically analysed.
Quantitative, qualitative and mixed methods studies were analysed to identify key factors influencing social networks. Experiences of people with intellectual disabilities identified themes of identity, powerlessness, inclusion, family and support. These themes are discussed with reference to theories of stigma and normalisation.
Stigma and normalisation can be used to better understand the needs, desires and dreams of people with intellectual disabilities for ordinary relationships, from which they are regularly excluded. Implications for policy and practice are discussed in relation to building and repairing often spoiled identities.